Volcanoes Unit 12 2 Shield Volcanoes inland above
Volcanoes Unit 12. 2
Shield Volcanoes inland above _______, hot spots NOT at plate Shield volcanoes are created _____ boundaries.
Shield Volcanoes inland above _______, hot spots NOT at plate Shield volcanoes are created _____ boundaries. mantle plumes from hot spots • created from _________ • ___________ short, wide cone • made of ____ lava only a lot of magma • eruptions are not explosive but contain ___________
Shield Volcanoes
Shield Volcanoes Mauna Kea, Hawaii
Shield Volcanoes
Composite Volcanoes Composite volcanoes are created at _______ converging plate boundaries, where one plate is ______. oceanic • continental + oceanic = chain of volcanoes on land called ___________ volcanic belt • oceanic + oceanic = chain of volcanoes in the ocean called ___________ volcanic island arc
volcanic island arc
How are composite volcanoes made? carbonates from dead sea animals 1. Oceanic plates have a lot of ______
How are composite volcanoes made? CO 2 2. Subducting plate melts and the carbonates turn into ____
How are composite volcanoes made? pull magma with it rise and _________ 3. CO 2 will _______
How are composite volcanoes made? 4. When the CO 2 and magma reaches the surface, it forms a tall cone volcano made of lava and composite volcano: a _______ ash
Eruptions erupts hot gas and ash and little magma • ______________,
Eruptions explosive because of gases inside the volcano build • very ________ high pressure _________
Mt. St. Helen’s, 1980
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